- Tytuł:
- A column generation technique for routing and spectrum allocation in cloud-ready survivable elastic optical networks
- Autorzy:
-
Goścień, R.
Walkowiak, K. - Powiązania:
- https://bibliotekanauki.pl/articles/330528.pdf
- Data publikacji:
- 2017
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
elastic optical network
anycast traffic
multicast traffic
network survivability
column generation technique
elastyczna sieć optyczna
sieć przełącznikowa
przeżywalność sieci - Opis:
- Driven by increasing user requirements and expectations, the fast development of telecommunications networks brings new challenging optimization problems. One of them is routing and spectrum allocation (RSA) of three types of network flows (unicast, anycast, multicast) in elastic optical networks (EONs) implementing dedicated path protection (DPP). In the paper, we model this problem as integer linear programming (ILP) and we introduce two new optimization approaches—a dedicated heuristic algorithm and a column generation (CG)-based method. Then, relying on extensive simulations, we compare algorithm performance with reference methods and evaluate CG efficiency in detail. The results show that the proposed CG method significantly outperforms reference algorithms and achieves results very close to optimal ones (the average distance to optimal results was at most 2.1%).
- Źródło:
-
International Journal of Applied Mathematics and Computer Science; 2017, 27, 3; 591-603
1641-876X
2083-8492 - Pojawia się w:
- International Journal of Applied Mathematics and Computer Science
- Dostawca treści:
- Biblioteka Nauki
Artykuł